# A276238 (b-file synthesized from sequence entry) 1 1 2 5 3 4097 4 7361 5 85073 6 658529 7 3999137 8 16777217 9 50281793 10 68544541 11 72281281 12 78202273 13 102931841 14 128459137 15 204786497 16 244622261 17 336392993 18 613750913 19 714155969 20 785432401 21 1008179297